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Re: Cross country networks, and data replication... Questions... :-)
- From: Jared Mauch
- Date: Thu Jan 16 19:05:29 2003
On Thu, Jan 16, 2003 at 03:45:30PM -0800, Gabriel wrote:
> Hello all.
> --- Where we are ---
> Currently, I've got a single site, colocated on the East Coast.
> Currently, I've got two NetApps at that site, one serving as a
> mailspool, the other serving as a location for web documents. This
> system works via NFS to a fair number of mail and web servers, and it's
> running happily.
> --- Where I'm going ---
> What I seek is some help on implementing a second site, and the link
> between the two. The sites will be more or less the same in terms of
> the equipment in them, or so I hope.
> I want to be able to have the changes made at one site replicated to the
> other site transparently. That is, if I update a file at site A, I want
> to be able to see the changes at Site B in a reasonable period of time
> (i.e., short), and without having to manually move data around. I
> specifically want to do this for allow both sites to offer the same
> mailspool, so that customers can check their mail at either site.
> I am in the planning phase of bringing up a second site, and at this
> site, there will be more web servers, and more mail servers. There will
> also be an additional netapp for each of mail and www.
> Between the pair of mail netapps (and to a lesser degree, the www
> netapps), I want them to replicate changes to the other one. That is,
> if a file is removed on Mail.NetApp A, it should also disappear on
> Mail.NetApp B. And if a file is created on netapp B, it should also
> come into existance on netapp A. Bidirectional updates.
> My current setup consists of Linux and FreeBSD systems, and F740 NetApps.
> And yes, there is a lot of pressure to stay with the NetApps.
> Any hints, or advice will be much appreciated.
You probally want something like snapmirror, but when a file is
changed/deleted in the mailbox, you hack your pop/imap server to delete
the file on the 'master' fileserver.
this isn't really on-topic though, imho.
Jared Mauch | pgp key available via finger from email@example.com
clue++; | http://puck.nether.net/~jared/ My statements are only mine.